Fox News - Denver Broncos quarterback Peyton Manning, fresh off winning Super Bowl 50, announces he is retiring after 18 seasons in the NFL.
Peyton Manning to retire after 18 seasons in NFL
Peyton Manning announces his retirement
Peyton Manning to retire after 18 seasons in NFL
AP Source: Peyton Manning to retire after 18 NFL seasons
Peyton Manning to retire after 18 NFL seasons
Buckley: Questions will follow Peyton Manning into retirement – Boston Herald
Peyton Manning makes call to retire after 18-year career - ABC News
Peyton Manning retires: Legacy of the Colts, Broncos' quarterback - Sports Illustrated